Garment-pressing machine



Patented Feb. 4, 1930 UNITED STATES PATENT OFFICE PETER EDUARD GELDHOF,OF SYRACUSE, NEW YORK, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO UNITEDSTATES HOFFMAN MACHINERY CORPORATION, OF NEW YORK, N. Y., A CORPORATIONOF DELAWARE GABMENT-PBESSIN G MACHINE Application filed July 15, 1920,Serial No. 896,505. Renewed December 23, 1925. I

This invention relates to garment pressing machinery and especially tomechanisms for working the press lever and pressing head of machines ofthisclass. More particularly the 6 invention relates to a cam operatedtoggle for resses. P One ofthe main objects of this invention is toproduce operating mechanism which exerts great power on the press leverto close the pressing head under high pressure on the garment.

The operating mechanism comprising t h1s invention is adaptable for usein connection with such machines as disclosed in the United StatesPalmer Patent 1,141,900 and Spencer Patent 1,164,616. One patent shows astraight link used to work the pressdever from a foot lever and theother shows a toggle for this .same purpose; My invention comprisesmeans for use on both classes of machines whereby the leverage and powerfor closing the press head is greatly increased over that shown in thetwo above types of patented machines.

A garment press operating mechamsm constructed in accordance with theplans of this invention, comprises the usual form of press lever workedby a foot lever, and a link or toggle being interposed between the presslever and foot lever for closing the pressing head on the garment to betreated and pressed. An adjustable device is so related with the footlever and toggle that the power exerted by the operator on the footlever is greatly increased and transmitted upwardly thru the toggle tothe press lever The accompanying drawing illustrates a conventionalgarment pressing machine in side elevation showing the parts comprisingmy invention embodied in the machine.

ile I am aware that it is old to employ adouble set of toggles, such asshown, for opening and closing the press, I claim it to be new to use acam leverage system, or

cam operated toggle, in connection with the double toggle set, togreatly increase the pressure exerted on a garment press head.

Furthermore, by reason of the toggle leverage as shown and ashereinafter more fully I described, a wide opening movementof the headis produced closing operation.

In presenting a more detailed disclosure of this invention, reference ishad to the accompanying-drawings wherein a frame 5 is shown having apress lever 6 fulcrumed thereon. The press lever 6 carries the usualtype of pressing head 7 on one end and an app priate toggle or'link onthe other end; and in this instance the toggle comprises pivotallyjoined parts 8 and 9, the upper member 8 of which is fulcrumed to theback end of the press lever, and the lower member 9 of the toggle beingmovable supported on apower device as later described.

lifting cam 12 is pivotally supported at 13 on the frame 5, and has acam face 14 made thereon. This member 12 is in effect a lever, one endof which is pivoted on the press frame while the other end has theunderneath arcuate face forming the cam 14, being a cam in relation tothe roller 22 by virtue of the slight eccentricity of the are 14 to thepivot center 19. The lower toggle member 9 is pivotally attached at 16to the lifting cam 12 which in effect forms a thrust sustaining memberfor the toggle.

A foot lever 18 is pivoted at 19 on the frame of the machine with thefront end prowith a rapid and powerful jecting from the frame so as tobe accessible to an operator. A roller carrier 20 is pivoted on the pin19 and is therefore adapted to concentric operation with the foot lever18. This roller carrier 20 is supported on the pin 19 and may beconfined between the forked end of the foot lever, so that the lower endof the roller carrier is directly under an adjustment screw21 which isscrewed into the foot lever and set up tightly against the member 20-.The upper end of the roller carrier is provided with a roller 22worln'ng against the cam 14. A closing toggle comprising links 24 and 25have their adjacent ends pivotally joined together; and the back end ofthe toggle link 24 is pivotally attached to the member 9, while thefront toggle link 25 is pivotally attached to the frame of the machine.A link 26 connects the closing toggle 2425 with the foot lever 18thereby a foot lever and press lever.

establishing a working relation between the Inasmuch as the lower end ofthe pressure I toggle 8-1-9 is supported on the short lift lever 12, itis only possible to cause a relatively short ,upward movement thru thistoggle to the press lever 6, and this movement, tho

slow,

is adapted to transmit great force due to the high leverage ratioobtained with the long foot lever 18 and'relatively short armed member20. The toggle 2425 is used to gain the necessaryand considerablepivotal move- 7'high above the garment being pressed. The

closing of the pressing head 7 is efiec'ted by .jthrusting downv on thefoot lever.

' The operation of the mechanism is such that the roller 22 travelsupwardly along the cam face 14, greatly increasing in pressurethereagainst which slowly moves the lift member 12 upwardly, therebytransmitting A a-high thrust'thru the straighte'ned toggle 89 which actswith great force on the press lever 6, and hence down forcibly on thepress head 7 It is seen therefore that the toggle 2425 is used forclosing the pressing head, while the cam mechanism through toggle 8-9 isemployed to p oduce the final pressure on the head. By reason of thefact that a short upper link 8 is employed in conjunction with the rearor main closing toggle comprising the members 8' and 9, a wide openingmovement of the head is produced and for the further reason that thetransverse toggle, or more specifically the member 24 thereof, isconnected to the lower toggle element 9- of the main closing toggleadjacent the center thereof or at a point substantially below thepivotal connection between the toggle elements 8 and 9, I am enabled toutilize the closing toggle (24, 25) to great advantage in that only arelatively short movement of the pedal lever 18 to effect the closingmovement is necessary. V

The screw 21 may be adjusted to vary the relation between roller 22 andthe cam 14, whereby a greater or less degree of pressure is exertedupwardly thru the straightened toggle 89.

Having thus described this invention, what I claim is as follows:

1. A garment pressof the type embodying cooperative pressing membersmovable in relation one to the other, a toggle arranged to move one ofthe members into pressing engagement with the other member, a camconnected to the toggle, and a foot lever connected'with the toggle toclose the pressing members and having connection with the cam to operatesa1d cam and exert pressure on the closed pressing members.

2. A garment press of the type having cooperative pressing membersmovable in relation one to the other, A one of the members intopressingengagement with the other member, a cam related with the toggle andhaving an eccentric working face,

a foot lever to operate the toggle, and a device on the foot lever toengage the eccentric working face of the cam andexert additional forceon the pressing members.

3. A garment press embodying co-opera- -tive pressing members movable inrelation one to the other, a toggle adaptedto move one of the membersinto pressing engagement with the other member, a" cam relatedwith thetoggle, a foot lever, a roller carrier operably related to the cam andfoot lover, a roller journaled in the roller carrier and adapted to workagainst the cam, and an adj ustment screw operative between the rollercarrier and the foot lever adapted to vary the working relation betweenthe roller and the cam.

4. A garment pressing machine embodying co-opera'tive pressing membersmovable in relation to each other, a pivoted foot lever supported on theframe, a roller carrier pivoted in the frame concentric'with the pivotof the foot lever and movable with said foot lever, a roller journaledin the roller carrier, a cam lever pivoted in the frame and lying incontact with the roller, a connection between the against the cam by thefoot lever, and a de-.

vice arranged to adjust the roller carrier relatively to the foot leverwhereby the aforesaid roller is changed in relation to the cam to varythe engagement of the co-operative pressing members.

6. An operating mechanism for presses of the type comprisingco-operative pressing members movable in relation one to the other, saidmechanism consisting of a lever fulcrumed in the press frame, a rollercarrier pivotally carried on the lever fulcrum point, an adjustmentmeans arranged to hold the roller carrier in fixed relation with thelever and to move the roller carrier with said lever,

a cam having connection with one of the movable pressing members forimparting pressure thereto and having its cam face formed eccentric withrelation to the fulcrum point which supports the foot lever and rollercarrier, and a roller journaled in the roller a toggle adapted to move 1carrier and adapted to work against the eccentric cam face.

In a press, a frame; a bed sugported thereby; a head lever; a headcarrie thereby; a main toggleinterposed between said head lever and athrust sustaining member, a transverse toggle connected with one of thelinks of the main toggle intermediate the ends of said link; and meansfor operating said transverse toggle.

8. In a press, a frame; a bed supported thereby; a head lever pivoted tosaid frame; a head carried by said lever; main toggle links comprising arelatively short link operatively connected to said head lever and arelatively long link connected to a thrust sustaining member; meansengaging substantially the center of said relatively long link forstraightening said toggle; and means for exerting an upward thrust uponthe main toggle after the same is straightened.

9. In a press, a frame; a bed supported thereby; a head lever pivoted insaid frame; a head carried by said lever; main toggle links comprising arelatively short link operatively connected to said head lever and arelatively long link connected to a thrust sustaining member; a secondtoggle, one member s whereof is connected substantially at the center ofsaid relatively long link for straightening the main toggle links; meansfor straightening said second toggle; and means for applying an upwardthrust to the main toggle when the same is straightened. In testimonywhereof-I aflix my signature.

- P. EDUARD GELDHOF.

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